What are the top 3 marketing techniques/platforms.

Why not do the same technique that you are proposing but do it in a non-age restricted community?

You can't refinance at 100% LTV without some sort of creative financing technique. 2. 

You can also look further back in time, beyond 12 months, and adjust for those market conditions, at the time of those sales.Another technique is to use the depreciated cost method.

I onnly know about this technique from listening to the podcast years ago.

Master one marketing technique then stack another.

If I were to offer services as a person that -upon receiving a person's preferences for the type of room/apartment or renter they are looking for- is willing to locate and tour apartments or rooms for them and provide them with tailored top recommendations, would I be breaking real estate law? 

This is from the IRS Cost Segregation Audit Technique Guide, publication 5653 https://www.irs.gov/pub/irs-pdf/p5653.pdfVarious approaches may be utilized in completing cost segregation, including: 1.

Also lots of cool tech coming out in the guest experience space to tailor someone's stay to their personal interests. 

Sure, but they won't generate the types of profits and opportunities this program will, simply bc they teach proprietary strategies and techniques you won't read anywhere.